A director can borrow money from his/her company.
So theoretically, borrowing money to help a director to buy or
sell own shares is possible. Because, by definition we know that a
company is an artificial being. So, there may be relationship
between a person and a company or more precisely a director and a
company; there is nothing to do "How that money will be utilized by
that director." The most important question to the lender will be
whether he/she get back the money or not, what to be done with that
money is not a primary query for the lender.
But company law of a country may or may not accept that.

A promoter is a founder of a company. He may or may not be the
director of the company. If the promoter is a director of the
company as well, then he is subject to receiving of dividends as
per his proportion of shareholding in the company.

Yes, in some countries a company can be a director of another
company. Hong Kong is one example.
However, in other countries a director has to be an individual,
and can't be a company. Australia is an example of a country with
this rule.

It depends entirely on whether one is referring to the director
of a movie, or a company director. A company director must dress
professionally, as this gives workers and customers confidence in
the company. A director may dress more informally.

Managing director: The managing director is the
head of the whole management team and a member of the board of a
company; in other words, the managing director is a CEO only, but
also has his own shares in the company and is also present in the
board meetings. In other words, a director of the board.
Chief Executive Director: The CEO is the biggest
corporate officer or in other words, the head of the management
team. he just controls the whole management and is the ultimate
boss in the company after the board of directors and the
chairman.

A managing director is the owner of a company and over sees key
decisions of the company. He is the chairman of board of directors
while a director is a member of the board of directors and oversees
and direct an aspect of the company for example finance director,
marketing director e t c